Improvement in lamp-brackets



H. R. M ILLS. Lamp-Bracket- No. 215,955. Patented May 27,1879;

N.FETERS. PHOTO LTHOGRAP UNITED STATES PATENT OFFICE.

HIRAM R. MILLS, OF PORT HURON, MICHIGAN.

IMPROVEMENT IN LAM P-BRACKETS.

Specification forming part of Letters Patent No. 215,955, dated May 27, 1879 application tiled September 18, 1878.

To all 'whom it may concer-nv:

Be it known that I, HIRAM R. MrLLs, of Port Huron, in the county of St. Clair and State of Michigan, have invented an Improvement in Adjustable Lamp-Brackets, of which the following is a specication.

In the drawings, Figure 1 is a perspective View of my improved device with a swinging cup-bracket attached, the whole secured to a wall. Fig. 2 is a like vie-w with a folding or extension arm attached to hold the cup. Sis an enlarged and detached view ot' the lamp-cup and spring. Fig. 4 is across-section of the socket on the line .e a; in l. Fig. 5 is a plan view of the upper side of the holdingscrew by means ot' which the lower end of the vertical rack-bar is secured to the wall. Fig. 6 is a view, in perspective, of the lower end of the vertical rack-bar and the screw with tlat channeled head for supporting the same.

In the accompanying drawings, which form a part of this specitication, A represents a rack-bar, upon which is slipped the bracket B, which is provided with a pawl, O, pivoted theretoin such a-manner that the leverendof the pawl will always hold the same in engagement with the rack. This bracket is provided with a socket, D, the opening through which is preferably triangular in shape, as shown in Fig. 4, to receive and securely hold varying sizes ot'cup-arms F. Athumb-screw,F, through the side ot' the socket fastens the cup-arm p thereto.

vent an accidental rotary movement of thev Fig.

rack-bar, which, by the weight of itself and the bracket and its attachments, is held in its engagements with the channels in the head of said screw, except when purposely lifted out ot said engagement. This screw G is pro vided with a tlange, c, to govern the depth to which it may be driven, and terminates in a head, d, with a hole, c, through it to receive the end of the rack-bar, and the face of the head is provided with the channels I), hereinbefore described.

The lamp-cup is eut out on one side to allow the insertion into said cup of the bulb or chamber of a ha-nd or stand lamp, the stem thereof passing through the cut outside. A slotted ring, H, turns around the lower end of the cup to hold the lamp therein.

I am awarethat brackets have been patented having notched plates near the lower ends of their pivots, Jr'or holding the bracketarms in any desired horizontal position, and therefore I do not pretend to be the iirst inventor ot' the same, broadly.

` What I claim as my invention, and desire to secure by Letters Patent, is-

l. As anew article ot' manufacture, the screw G', having shoulder c and a tlat head, d, provided with channels b, extending radially from a central hole, c, constructed substantially as described and shown.

2. The combination, with Ythe verticallyadjustable lamp-bracket B, ot' the rack-bar A, carrying such bracket, the screw G, and loose pin for holdin the upper end ot' the rack-bar, and the screw G', having channeled head for supporting the lower end of the rack-bar, substantially as described and shown.

3. The bracket B, provided with triangular opening and with a set-screw, in combination with a lamp-cup, a pawl, and a rack-bar, substantially as and for the purposes specited.

H. It. MILLS.

i Witnesses A. BARTHEL, H. S. SPRAGUE. 

